20424780

素因数分解:

$2^2\times 3^2\times 5^1\times {\mathrm{233}}^1\times {\mathrm{487}}^1$

素因数の和:735

約数の個数: 72

約数和(自身を含む): 62348832

約数和(自身を除く): 41924052

約数列:

[1, 2, 3, 4, 5, 6, 9, 10, 12, 15, 18, 20, 30, 36, 45, 60, 90, 180, 233, 466, 487, 699, 932, 974, 1165, 1398, 1461, 1948, 2097, 2330, 2435, 2796, 2922, 3495, 4194, 4383, 4660, 4870, 5844, 6990, 7305, 8388, 8766, 9740, 10485, 13980, 14610, 17532, 20970, 21915, 29220, 41940, 43830, 87660, 113471, 226942, 340413, 453884, 567355, 680826, 1021239, 1134710, 1361652, 1702065, 2042478, 2269420, 3404130, 4084956, 5106195, 6808260, 10212390, 20424780]

約数ペア:

[(1, 20424780), (2, 10212390), (3, 6808260), (4, 5106195), (5, 4084956), (6, 3404130), (9, 2269420), (10, 2042478), (12, 1702065), (15, 1361652), (18, 1134710), (20, 1021239), (30, 680826), (36, 567355), (45, 453884), (60, 340413), (90, 226942), (180, 113471), (233, 87660), (466, 43830), (487, 41940), (699, 29220), (932, 21915), (974, 20970), (1165, 17532), (1398, 14610), (1461, 13980), (1948, 10485), (2097, 9740), (2330, 8766), (2435, 8388), (2796, 7305), (2922, 6990), (3495, 5844), (4194, 4870), (4383, 4660)]